The planet Venus has a thick, dense atmosphere made up almost entirely of carbon dioxide. Though Venus is farther from the sun than Mercury, its surface is actually hotter because the atmosphere traps the heat like a gia... More »

www.reference.com Science Astronomy Planets

The atmosphere of Venus is made up of 96 percent carbon dioxide, 3.5 percent nitrogen and less than 1 percent of the following: argon, water vapor, carbon monoxide and sulfur dioxide, according to Windows to the Universe... More »

www.reference.com Science Astronomy Planets

Venus is considered a terrestrial planet, which means it is has a solid surface made of rocks. The atmosphere is comprised mainly of nitrogen, carbon dioxide and sulfuric acid. More »

Venus essentially has zero humidity because of its high surface temperature of 480 degree Celsius and its atmosphere of 97 percent carbon dioxide. These conditions result to the runaway greenhouse effect, wherein water v... More »

The atmosphere of Venus is made up of 96 percent carbon dioxide, 3.5 percent nitrogen and less than 1 percent of the following: argon, water vapor, carbon monoxide and sulfur dioxide, according to Windows to the Universe... More »

www.reference.com Science Astronomy Planets

Mars' atmosphere is made mostly of carbon dioxide, with some nitrogen and argon. It has a very small amount of oxygen and carbon monoxide and tiny amounts of noble gases and other compounds. Earth's atmosphere is 100 tim... More »

www.reference.com Science Astronomy Planets

According to Space.com, the atmosphere on Mars is around 100 times thinner compared to that of the Earth's and is composed of about 95 percent carbon dioxide. However, the Martian atmosphere is still thick enough to sust... More »